I can't understand why I get bad result in XML multiple choice questions in class?
I already did read the online materials ( from W3C school) and read the slides carefully, why I still have bad result?

When doing the assignment of XML, I do the assignments well and get good grade.

Typically what should I improve in learning XML to get better result in the final XML exam? Would you please provide me with some good tips of yours in learning XML? Especially before doing the multiple choice?

Thank you very much